Baking machinery.



O. C. KNIFE.

BAKING MACHINERY.

APPLIOATIOH FILED MAY 29, 1912.

1,064,345. Patented June 10, 1913.

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WITNESSES Q Q INVENTOR 0%; C & W/Itlomey I O. C. KNIFE.

BAKING MACHINERY.

APPLICATION FILED MAY 29,1912.

1,064,345. Patented June 10, 1913.

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WITNESSES INVENTOR su of Letters Patent Patented June 10,-191 '8'.

Application filed Kay 29, 1912. Serial in. 700,589.

I To all whom it mizy concern I other as indicated, in such manner that when Be it known that. I, Omvnn C. KNIFE, a spur wheel, 29, mounted in a journaled sup-.

citizen of the United States, and resident of, port 28, and in mesh with the teeth of 18, l -Palo Alto, in the county of Santa Clara and. is turned by the crank 21, the molds State of California, whose post-oflice advolve toward one another. The rims or dress is No. 526 Colum ia road, Washington, revolving molds 13, are retained in place and District of Columbia,). have invented new given anti-friction support by placing balls I and useful Improvements in Baking Ma- 14 in concentric grooves formed in 11, and chinery, of which the following is a specifi- 13, as indicated in the drawings. cation. In theend of each hollow cylinder 11, is

This invention relates to machines for inserted a gas or other hydro-carbon burner baking cakes and pastry and is especially 27, the latter being securedto the frame 10, adapted for thin paste or batter preparations in any suitable manner to suppprt it in posisuch as are used for griddle cakes and waftion. Fuel is received for the burners fies, and answers admirably for all matethrough the pipes 25, furnished with cutofi rials that can be fed from a reservoir or valves 26. I hopper and deposited on-heated moving sur- Supported from the mainframe 10, of faces preferably grooved rolls heated and the machine and directlyabove the rolls is caused to revolve while the batter is being hopper 19, provided with openings 30,110 deposited from the reservoir). The baking dischar e the batter or paste to the respecof strips of dough delivered from a die or five r01 s. A cutoff slide 17, regulates the previously rolled pastry such as that for pie discharge. Attached to the hopper is a vescrusts and crackers can be economically persel or reservoir 20, provided with a spout formed on the same machine. see Figs. 1 and 2, to feed confection to the The object of the invention is to produce portions of batter or pastry, andprovided a device'simple in construction, low in cost, with a cutoff valve, if desired. light "in weight, and adapted for family Beneath each roll is a pan 32, for supplyrestaurant and factory use. ing grease to the roller 33, which in turn The features claimed as new are the supcontacts with the baking roll .or mo1d13. ply of strips of dough or portions of bat- On the under side of each mold 13 is pivoted ter simultaneously to movin surfaces (pref t0 the main frame a knife 34, see Fig. 5, the erably heated revolving r0 5) to partially sharp edge resting at an acute angle on the bake them, and uniting the strips or porbaking surface of the roll. In the modified tions for final baking, and also the insertion form of baking surface arranged to bake of sweetening material or confection (if so the material in separated portions and not desired) between the strips at or before the in continuous strips the depressions may time of unitin them for the completion of be arranged with false or loose bottoms 16, to the baking; other. features are fully brought assist in removing the baked cakes from the forth in the specification and drawings. molds.

In the accompanying sheets of drawings: As indicated in the drawings when baking Figure 1 is a sectional side elevation of the in the mold 13, provided with depressions 15, machine ;Fig. 2 is a sectional end view the rotation may be arrested at'intervals by through theline 2 Fig. 1; Fig. 3 is a 'the spring catches 23, engaging the depressectional detail of one of the depressions 0r sions 24 in the rim of wheel 22, to which the baking pans ;Fig. 4 is a sectional view handle 21, is attached to arrest motion and similar to Fig. 2, but showing a modified cause a dwell of the moving heated surfaces form of heating device ;Fig. 5 is a sectional which may be overcome after the dough is side elevation ofa portion of Fig. i. set or baking completed by a stronger efi'ort Referring to the figures, 10 is the main of the operator. It will be seen that the frame piece on which is mounted hollow mold can be stopped whena depression is in skids, 11, preferably secured to the frame a horizontal position under the spout of the by bolts, 12, two annular rotatable molds reservoir,agiven quantity of batter depos twith flanged rims, 13, are mounted on the ed, and the valve closed without continuing skids, 11. The molds are geared to each STATES PATENT: omen.

OLIVEB 0. 11m, 0]? PALO ALTO, CALIFORNIA. 2

BAKING MAGHIITEIY.

the rotation until the batter shall have had m l v an opportunity to set or partially bake in a horizontal position: the rolls can then be rotated 90 and the two portions can be allowed to dwell in that-position until the baking is completed. I

The source of heat may be gases. indi cated in Figs. 1, and 2, or electricity as in Figs. 4, and 5. When electricity is em-. ployed each roll 13 is formed of two concentrio members 13, 13 the inner member being covered with mica or other insulating, material 35, a coil of resistance wire 36 wrapped on it and another cover of insulating material placed over the wire 37, the member 13 is then slid on current is led to and from the heating coils by copper brushes 37 38which bear against rings of copper mounted on the standard and separated therefrom by mica or other heat resistant insulation and these rings are connected with a source of electric supply through an ad i ustable rheostat 39 as indicated.

he operation of the machine is as follows: The hopper being full of batter, and the rolls heated sufliciently, thecutofi' 17 is moved to the position shown in Fig. 1, to open the spouts and the crank 21 is turned, revolving the rolls slowly fbward each other. The batter striking the hot roll immediately begins to cook, and as the rolls revolve, is

' carried in a thin sheet on each roll to the point where the rolls'are nearest together, At this point the uncooked surface of the batter upon each roll reaches the corresponding batter on the other, and the two flow together, the final cooking or baking then taking place at the place where the rolls are nearest together. The completed. pastry is discharged immediately below and may be delivered in any" suitable or approved manner. J

As the rolls revolve the adhering burnt particles of batter are scraped fromthe rolls by the knives 34, see Fig. 5, or by the spring actuated false bottoms 16 of the mold pans 15, where that type is used, and the rolls are kept well greased by the brush 33, revolving in the pans 32. n

When it is desired to insert confection between the two portions of the cake the cutoflvalve is opened in the reservoir 20 just as the two parts are being united for final baln'ng and the filling or confection introduced through a spout between the two layers. When baking continuous strips the valve remains constantly open.

' While I have described the best form of my invention-now known to me, I desire to have it understood that my iiivention may be made to'take many'iorms by a skilled mechanic without departing from the spirit thereof, and parts thereof may be used independently of others, and all. of these Ideincense sire to cover being limited only by the claims annexed hereto.

Having thus described my invention, what I claim as new and desire to secure by Let-- ters Patent is:

1. A baking machine comprising a pair of heated surfaces, means for supplying uncooked pastry to each, said surfaces being adapted to approach one another to unite the partiallycooked pastry into a unitary product, and to recede after the cooking.

2. In a baking machine, the combination of two heated surfaces arranged to approach each other, means for: supplying batter to each, heaters for partially baking the same, and means for feeding a confection between the partially cooked layers, said layers uniting to form a composite pastry product:

3. In a baking machine, a pair of rotatable rolls, means for heating'the same, whereby they may be raised to a baking temp'erature as they rotate, and means for supplying batter to each roll at a point advance of their nearest approachto permit the two portions of better to unite into a unitary product. v e i 4. In a machine of the character described,

a pair of rotatable rollsparallel and spaced of heated surfaces, means for supplying uncooked pastry to each, said surfaces being adapted to approach one another to unite the partially cooked pastry into a unitary product,.and to recede after the cooking, and means for discharging the cooked pastry.

6. A baking machine comprising apair of heated surfaces mounted to approach and recede from each other, a source of supply for uncooked pastry adjacent to the point -of close approach, means for shifting the surfaces and causing a dwell after filling with pastry whereby the two layers are caused to unite.

7. A baking machine comprising a pair of surfaces mounted a short distance apart at their nearest point of approach, an electric heater carried by each surface, and means for supplying uncooked pastry near the point of closest approach, whereby the two portions of pastry merge into .a un1- tary product.

- OLIVER C. KNIPE. Witnesses:

' M. J. BUNNELL,

CHARLES LowELL HOWARD. 

